Mold for processing plastic building blocks

By designing a plastic building block mold system containing cylinders and pushing components, the problem of difficulty in pasting and demolding of building block products during the injection molding process of existing molds is solved, and convenient separation and efficient demolding between building block products and molds is achieved.

CN119550573APending Publication Date: 2025-03-04刘小曼
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Patent Information

Application Number
CN202411670907.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-11-21
Publication Date
2025-03-04

AI Technical Summary

Technical Problem

During the injection molding process, existing plastic building block molds are easily pasted on the mold due to the viscosity of the material and liquid, and thermal expansion and contraction lead to negative pressure, resulting in difficulty in mold removal and easy to breakage.

Method used

A mold system including a base, a horizontal frame, a mounting frame, a fixed mold, a moving mold, a building block mold, a cylinder and a pushing component is designed. The moving mold is driven close to or away from the fixed mold through the cylinder, and the pushing components such as a curved frame and a push rod are used to promote the separation of the building block products from the mold.

Benefits of technology

It realizes convenient separation between building block products and molds, reduces the risk of damage to building block products during the demolding process, and improves the overall demolding efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention relates to the technical field of building block processing, in particular to a plastic building block processing mold which comprises a base, a transverse frame, a first mounting frame, a fixed mold, a second mounting frame, a movable mold, a building block mold and the like. Transverse frames are mounted at the tops of the two symmetrical sides of the base, a first mounting frame and a second mounting frame are mounted on the two sides of each transverse frame respectively, the fixed mold and the movable mold are correspondingly mounted on the first mounting frames and the second mounting frames, a plurality of rows of building block molds are arranged on the side, facing the fixed mold, of the movable mold, and a first air cylinder is mounted on each transverse frame. The first pushing frame is driven to move towards the fixed mold through extending movement of the piston rod of the second air cylinder, the first pushing frame pushes the jacking column to move towards the fixed mold through the arc-shaped frame, the jacking column penetrates through the building block mold to provide pushing force for building block products on the building block mold, and the building block products and the building block mold are conveniently separated.
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Description

Technical Field

[0001] The invention relates to the technical field of building block processing, and in particular to a mould for processing plastic building blocks. Background Art

[0002] The mold is a tool that makes the blank into a product with a specific shape and size under the action of external force. It is widely used in blanking, die forging, cold heading, extrusion, powder metallurgy pressing, pressure casting, and compression or injection molding of engineering plastics, rubber, ceramics and other products. The mold has a specific contour or inner cavity shape. The contour shape with a cutting edge can make the blank separate according to the contour shape. The mold generally consists of two parts, the movable mold and the fixed mold, which can be separated or combined. When separated, the product is taken out, and when closed, the blank is injected into the mold cavity for forming.

[0003] Plastic building blocks are usually cubic wooden or plastic solid toys. The production of building block toys is inseparable from the use of injection molds. However, in the actual injection molding process of existing building block toy injection molds, since the material liquid is hydraulically cast on the building block mold and cooled to form, when the material liquid is hydraulically cast on the building block mold, the building block product is easy to stick to the building block mold due to the viscosity of the plastic material liquid. In addition, when the building block product is die-cast, after the material liquid is hydraulically cast into the building block product and cooled, there is a negative pressure between the building block product and the building block mold due to thermal expansion and contraction, which makes it difficult to demold the building block product and it is easy to be damaged.

[0004] Therefore, we propose a mold for processing plastic building blocks which is easy to demould. Summary of the invention

[0005] The technical solution is: a mold for processing plastic building blocks, comprising a base, a cross frame, a first mounting frame, a fixed mold, a second mounting frame, a movable mold, a building block mold, a first cylinder, a first pushing assembly and a second pushing assembly, the cross frames are installed on the tops of the symmetrical sides of the base, the first mounting frame and the second mounting frame are installed on both sides of the cross frame respectively, the fixed mold and the movable mold are correspondingly installed on the first mounting frame and the second mounting frame, a side of the movable mold facing the fixed mold is provided with several rows of the building block molds, the first cylinder is installed on the cross frame, the piston rod of the first cylinder is rotatably connected to the shaft of the second mounting frame passing through the cross frame, the first cylinder drives the movable mold to approach or move away from the fixed mold through the second mounting frame, and the movable mold is respectively provided with a first pushing assembly and a second pushing assembly that pushes the building block to separate from the building block mold.

[0006] Further, the first pushing assembly includes a second cylinder, a first pushing frame, an arc frame, a push column and a first elastic member. The push column passing through the end of the building block mold is slidably arranged on the movable mold. The push column is located in the inner cavity of the movable mold and is wrapped with the first elastic member. The push columns passing through the same row of the building block molds are commonly connected with the arc frame, and the first pushing frame is connected between the arc frames. The first pushing frame is connected to the telescopic rod of the second cylinder mounted on the second mounting frame.

[0007] The second pushing assembly comprises a push rod, a third mounting bracket, an extrusion rod, a second elastic member, a second pushing bracket, a first connecting block, a connecting rod and a pushing plate, the upper and lower parts of the first pushing bracket are both mounted with the push rods parallel to the arc bracket, the second mounting bracket is mounted on the side wall of the cross bracket facing the second mounting bracket, the extrusion rod is slidably mounted on the upper and lower parts of the third mounting bracket, the second elastic member is wrapped around the extrusion rod, one end of the extrusion rod is in contact with and cooperates with the push rod, the other end of the extrusion rod passes through the third mounting bracket and is connected to the second pushing bracket, the upper and lower parts of the second pushing bracket are both mounted with the first connecting block, the first connecting block is commonly connected to the connecting rod, the upper and lower sides of the connecting rod centered on the building block mold are both connected to the pushing plate, and both ends of the pushing plate are slidably mounted with the connecting rod.

[0008] Furthermore, it also includes an inverted T-shaped slide, a cross plate, a protrusion and a connecting roller, the connecting roller and the inverted T-shaped slide are respectively installed on both sides of the axis connected to the cross plate, the inverted T-shaped slide is arranged on the outer side of the cross plate, the cross plate is fixedly arranged on the cross plate, the connecting roller is in rolling contact with the cross plate, the cross plate is provided with the protrusion on the side facing the inverted T-shaped slide, the protrusion is slidably connected to the inverted T-shaped slide and the protrusion can slide along the sliding groove of the inverted T-shaped slide, when the protrusion moves along the sliding inclined groove of the inverted T-shaped slide, the inverted T-shaped slide slides to lift up the side of the second mounting frame away from the fixed mold, and the second mounting frame and the movable mold are tilted.

[0009] Furthermore, the side of the inverted T-shaped slide toward the first cylinder is arranged to be inclined downward.

[0010] Furthermore, it also includes a screw rod and a second connecting block, wherein the screw rod parallel to the connecting rod is provided on one side of the connecting rod, the screw rod is rotatably installed on the first connecting block, and the second connecting blocks are threadedly connected on both sides of the screw rod centered on the building block mold, and the second connecting block is fixedly connected to the pushing plate.

[0011] Furthermore, it also includes an n-type frame, an oblique slide, a longitudinal connecting plate and a fixing component. The n-type frame is slidably installed between the second mounting frame and the two side walls of the horizontal frame. The lower end of the n-type frame is connected to the oblique slide. The oblique slide is slidably connected to the longitudinal connecting plate installed on the second push frame. The third mounting frame is provided with a fixing component for limiting and fixing the n-type frame.

[0012] Furthermore, the fixing assembly includes a limit card plate and a third elastic member, the limit card plate is slidably mounted on the third mounting frame, the limit card plate slides through the n-type frame, and the third elastic member is arranged on the limit card plate.

[0013] Furthermore, it also includes an exhaust component, on which the horizontal frame is installed an exhaust component for exhausting the gas generated during the injection molding of the building blocks, and the exhaust component is arranged above the fixed mold.

[0014] Furthermore, it also includes a collection frame, which is arranged on the base and is arranged below the movable mold and the fixed mold.

[0015] The beneficial effects are: 1. The first push frame is driven to move toward the fixed mold direction by the extension movement of the second cylinder piston rod, and the first push frame pushes the top column to move toward the fixed mold direction through the arc frame, and the top column passes through the building block mold to provide a driving force for the building block product on the building block mold, so that the building block product and the building block mold can be easily separated; at the same time, the first push frame drives the push rod to apply an extrusion force to the extrusion rod, and the extrusion rod drives the second push frame and the push plate connected to the second push frame to move toward the fixed mold direction, so that the push plate generates an extrusion force on the building block product, thereby realizing the effective separation of the building block product and the building block mold.

[0016] 2. When the first cylinder drives the second mounting frame to move away from the fixed mold, the second mounting frame drives the inverted T-shaped slide to move away from the fixed mold. When the protrusion slides into the inclined groove of the inverted T-shaped slide and moves relatively along the inclined groove, one end of the inverted T-shaped slide tilts upward, thereby driving the second mounting frame and the movable mold to tilt, providing convenience for the collection and demoulding of building block products.

[0017] 3. By rotating the screw rod, the screw rod drives the adjacent second connecting blocks to move toward or in the opposite direction, thereby adjusting the distance between the push plates on both sides of the building block mold, so as to flexibly adjust the distance between the adjacent push plates according to different building block products, and provide convenience for convenient demoulding of building block products of different specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0019] Figure 2It is a three-dimensional structural schematic diagram of the frame, movable mold, fixed mold and parts used to push the rod building blocks to demould according to the present invention.

[0020] Figure 3 It is a schematic diagram of the cross-sectional structure of the movable mold of the present invention.

[0021] Figure 4 It is a schematic diagram of a partial three-dimensional structure of a pushing component for further enhancing demoulding of building blocks according to the present invention.

[0022] Figure 5 The figure is a three-dimensional structural schematic diagram of the parts used to realize the tilting of the movable mold according to the present invention.

[0023] Figure 6 It is a schematic diagram of the partial three-dimensional structure of the parts used to realize the tilting of the movable mold in the present invention.

[0024] Figure 7 It is a schematic diagram of the three-dimensional structure of the installation of the connecting rod, the pushing plate and the screw rod of the present invention.

[0025] Figure 8 For the present invention Figure 7 A local enlarged schematic diagram of point A.

[0026] Fig. 9 It is a three-dimensional structural schematic diagram of components such as the n-type frame, the oblique slide, the longitudinal connecting plate and the second push frame of the present invention.

[0027] Fig.10 For the present invention Fig. 9 Schematic diagram of the local three-dimensional structure.

[0028] Fig.11 It is a schematic diagram of the three-dimensional structure of the exhaust assembly and the collection frame of the present invention.

[0029] Figure numbers: 1_base, 2_cross frame, 3_first mounting frame, 4_fixed mold, 5_second mounting frame, 6_movable mold, 61_building block mold, 7_first cylinder, 8_second cylinder, 9_first push frame, 91_push rod, 10_arc frame, 11_top column, 12_first elastic member, 13_third mounting frame, 14_extrusion rod, 15_second elastic member, 16_second push frame, 161_first connecting block, 17_connecting rod, 18_pushing plate, 19_inverted T-shaped slide, 20_cross plate, 201_bump, 21_connecting roller, 22_screw rod, 23_second connecting block, 24_n-type frame, 25_oblique slide, 26_longitudinal connecting plate, 27_limiting card plate, 28_third elastic member, 29_exhaust assembly, 30_collection frame. DETAILED DESCRIPTION

[0030] The technical solution of the present invention is further described below in conjunction with the accompanying drawings.

[0031] Embodiment: A mold for processing plastic building blocks, such as Figure 1 , Figure 2 and Figure 3 As shown, it includes a base 1, a cross frame 2, a first mounting frame 3, a fixed mold 4, a second mounting frame 5, a movable mold 6, a building block mold 61, a first cylinder 7, a first pushing assembly and a second pushing assembly. The tops of both sides of the base 1 are symmetrically mounted with cross frames 2. A slide groove is provided on the upper left side of the cross frame 2. The first mounting frame 3 is fixedly mounted on the right side of the cross frame 2. The fixed mold 4 is detachably mounted on the first mounting frame 3. The second mounting frame 5 is slidably mounted in the slide groove on the left side of the cross frame 2 through a connecting shaft. The movable mold 6 is detachably mounted on the second mounting frame 5. Four rows of building block molds 61 are arranged on the left side of the movable mold 6. Each row is provided with no less than 7 building block molds 61, and the number of building block molds 61 can be appropriately increased or decreased as needed. At the same time, the fixed mold is provided with injection molding cavities whose number is consistent with the building block molds 61 and whose positions are corresponding. The injection molding cavities are connected through injection molding tubes. A first cylinder 7 is installed on the right side of the cross frame 2. The piston rod of the first cylinder 7 is rotatably connected to the second mounting frame 5 through the connecting shaft of the cross frame 2. The first cylinder 7 drives the movable mold 6 to approach or move away from the fixed mold 4 through the second mounting frame 5. The movable mold 6 is respectively provided with a first pushing component and a second pushing component for pushing the building block to separate from the building block mold 61.

[0032] like Figure 2 and Figure 3 As shown, the first pushing assembly includes a second cylinder 8, a first pushing frame 9, an arc frame 10, a push column 11 and a first elastic member 12. A push column 11 passing through the end of the building block mold 61 is slidably provided on the movable mold 6. The push column 11 is arranged on both sides of the building block mold 61. The push column 11 is located in the inner cavity of the movable mold 6 and is wound with the first elastic member 12. The two ends of the first elastic member 12 are connected to the inner wall of the inner cavity of the movable mold. The first elastic member 12 is a reset spring. The push columns 11 passing through the same row of building block molds 61 are commonly connected with the arc frame 10. The arc frames 10 are commonly connected with the first pushing frame 9. The first pushing frame 9 is connected to the telescopic rod of the second cylinder 8 installed on the second mounting frame 5. The end of the first pushing frame 9 facing away from the movable mold slides through the second mounting frame 5, and the first pushing frame 9 is driven by the second cylinder 8 to move toward the fixed mold direction. The first pushing frame 9 drives the arc frame 10 and the push column 11 to move toward the fixed mold direction, and the building block product on the building block mold 61 is ejected by the push column 11.

[0033] like Figure 2 and Figure 4As shown, the second pushing assembly includes a push rod 91, a third mounting frame 13, an extrusion rod 14, a second elastic member 15, a second pushing frame 16, a first connecting block 161, a connecting rod 17 and a pushing plate 18. The upper and lower parts of the first pushing frame 9 are both installed with push rods 91 parallel to the arc frame 10. The second mounting frame 5 is installed with a third mounting frame 13 on the side wall facing the horizontal frame 2. The upper and lower parts of the third mounting frame 13 are both slidably installed with an extrusion rod 14. The extrusion rod 14 is wound with a second elastic member 15. Both ends of the second elastic member 15 are respectively connected to the end of the extrusion rod 14 and the third mounting frame 13. The second elastic member 15 is preferably a compression spring. One end of the extrusion rod 14 contacts and cooperates with the push rod 91, and the other end of the extrusion rod 14 passes through the first The three mounting frames 13 are connected together with a second push frame 16, the upper and lower parts of the second push frame 16 are both installed with a first connecting block 161, and the first connecting block 161 is commonly connected with a connecting rod 17 parallel to the longitudinal part of the second push frame 16, and the upper and lower sides of the connecting rod 17 centered on the building block mold 61 are connected with a pushing plate 18 for pushing the building block product on the building block mold 61 away from the building block mold 61, and the two ends of the pushing plate 18 are slidably installed with the connecting rod 17, and the second push frame 16 is pushed to move toward the fixed mold 4 by the extrusion rod 14, and the second push frame 16 drives the pushing plate 18 to move toward the fixed mold 4, and the pushing plate 18 pushes the building block product on the building block mold 61 away from the building block mold 61, so as to realize the effective demoulding of the building block product.

[0034] When in use, the piston rod of the first cylinder 7 is driven to contract, so that the movable mold 6 fits with the fixed film, and the blank is injected into the cavity of the fixed film through the injection port of the fixed mold 4, and the blank is pressed into a plastic building block product through the building block mold 61 of the movable mold 6, and then the piston rod of the first cylinder 7 is driven to extend, so that the movable mold 6 moves away from the fixed mold 4, and the piston rod of the second cylinder 8 is extended to push the first push frame 9 to move toward the fixed mold 4, and the ejector column 11 is pushed toward the fixed mold 4 through the arc frame 10, and the ejector column 11 ejects the building block product from the building block mold 61. The building block product is separated from the building block mold 61; at the same time, the push rod 91 moves synchronously with the first push frame 9. When the push rod 91 moves toward the fixed mold 4, the push rod 91 applies a thrust to the extrusion rod 14, and the extrusion rod 14 pushes the second push frame 16 to move toward the fixed mold 4. The second push frame 16 drives the connecting rod 17 and the pushing plate 18 connected to the connecting rod 17 to move toward the fixed mold 4 through the first connecting block 161, applying a thrust to the building block product on the building block mold 61, so that the building block product is completely separated from the building block mold 61, thereby achieving the effect of efficiently demoulding the building block product from the building block mold 61.

[0035] like Figure 5 and Figure 6As shown, it also includes an inverted T-shaped slide 19, a cross plate 20, a protrusion 201 and a connecting roller 21. The connecting rollers 21 and the inverted T-shaped slide 19 are respectively installed on both sides of the connecting shaft connecting the second mounting frame 5 and the cross frame 2. The inverted T-shaped slide 19 is fixedly connected to the connecting shaft, and the connecting roller 21 is rotatably connected to the connecting shaft. The inverted T-shaped slide 19 is arranged on the outer side of the cross frame 2. The side of the inverted T-shaped slide 19 facing the first cylinder 7 is inclined downward, with an inclination of 25 degrees. The cross plate 20 is fixedly arranged on the cross frame 2. The connecting roller 21 is in rolling contact with the cross plate 20. A protrusion 201 is provided on the side of the cross plate 20 facing the inverted T-shaped slide 19. The protrusion 201 is provided at the midpoint of the cross plate 20. The protrusion 201 is slidably connected with the inverted T-shaped slide 19 and the protrusion 201 can slide along the slide groove of the inverted T-shaped slide 19. When the protrusion 201 moves along the sliding inclined groove of the inverted T-shaped slide 19, the inverted T-shaped slide 19 slides to lift the side of the second mounting frame 5 away from the fixed mold 4 upward, and the second mounting frame 5 and the movable mold 6 are tilted.

[0036] When the first cylinder 7 drives the second mounting frame 5 and the movable mold 6 to move away from the fixed mold 4 through its piston rod, the inverted T-shaped slide 19 also moves away from the first cylinder 7. When the protrusion 201 moves along the slide groove of the inverted T-shaped slide 19 to the inclined part of the slide groove, under the guidance of the inclined slide groove of the inverted T-shaped slide 19, the inverted T-shaped slide 19 drives the second mounting frame 5 to rotate clockwise by a certain angle with the connection between the inverted T-shaped slide 19 and the second mounting frame 5 as the center, so that the second mounting frame 5 and the movable mold 6 are tilted at a certain angle, which facilitates the demoulding operation of the building block product and the building block mold 61.

[0037] like Figure 7 and Figure 8 As shown, it also includes a screw rod 22 and a second connecting block 23. A screw rod 22 parallel to the connecting rod 17 is provided on one side of the connecting rod 17. The screw rod 22 is rotatably installed on the first connecting block 161. The screw rod 22 is threadedly connected to the second connecting block 23 on both sides centered on the building block mold 61. The thread directions of the screw rod 22 on both sides centered on the building block mold 61 are oppositely arranged. The second connecting block 23 is fixedly connected to the push plate 18. By rotating the screw rod 22, the distance between adjacent push plates 18 is adjusted.

[0038] By rotating the screw rod 22, the screw rod 22 rotates and drives the second connecting block 23 threadedly connected thereto to perform lifting and lowering movements, thereby adjusting the push plates 18 located at the upper and lower parts of the building block mold to perform forward or reverse movements with the building block mold 61 as the center, thereby achieving flexible adjustment of the distance between adjacent push plates 18 according to the specifications of the building blocks, thereby facilitating the demoulding operation of the building block products.

[0039] Such as 9 and Fig.10As shown, it also includes an n-type frame 24, an oblique slide 25, a longitudinal connecting plate 26, a limit card plate 27 and a third elastic member 28. The second mounting frame 5 is slidably installed with an n-type frame 24 between the two side walls of the cross frame 2. The lower end of the n-type frame 24 is connected to the oblique slide 25. The oblique slide 25 is slidably connected to the longitudinal connecting plate 26 installed on the second push frame 16. A limit card plate 27 is slidably installed on the third mounting frame 13. The limit card plate 27 slides through the n-type frame 24. The limit card plate 27 is provided with a third elastic member 28, and the third elastic member 28 is a compression spring.

[0040] The n-type frame 24 moves downward along the third mounting frame 13, and the n-type frame 24 drives the oblique slide 25 to move downward synchronously, and the oblique slide 25 drives the longitudinal connecting plate 26 to move toward the fixed mold 4, and the longitudinal connecting plate 26 drives the second push frame 16 to move toward the fixed film direction, and the second push frame 16 drives the connecting rod 17 and the pushing plate 18 connected to the connecting rod 17 to move toward the fixed mold 4, so that the pushing plate 18 is away from the movable mold 6 and the building block mold 61, and the n-type frame 24 is limited and fixed by the limiting card plate 27. At this time, the building block mold 61 on the movable mold 6 can be easily replaced, so that the building block molds 61 of different specifications can be flexibly replaced according to needs.

[0041] like Fig.11 As shown, it also includes an exhaust component 29. The exhaust component 29 for exhausting the gas generated during the injection molding of the building blocks is installed on the cross frame 2. The exhaust component 29 is arranged above the fixed mold 4. The exhaust gas generated during the injection molding is discharged to a designated position through the exhaust component 29, providing installation protection for the operator.

[0042] like Fig.11 As shown, a collecting frame 30 is also included. The collecting frame 30 is arranged on the base 1 and is arranged below the movable mold 6 and the fixed mold 4. The demoulded building block products are efficiently collected through the collecting frame 30.

[0043] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A mold for processing plastic building blocks, comprising a base, a cross frame, a first mounting frame, a fixed mold, a second mounting frame, a movable mold, a building block mold and a first cylinder, wherein the cross frames are mounted on the tops of both symmetrical sides of the base, the first mounting frame and the second mounting frame are mounted on both sides of the cross frame respectively, the fixed mold and the movable mold are mounted on the first mounting frame and the second mounting frame respectively, a plurality of rows of the building block molds are arranged on the side of the movable mold facing the fixed mold, the first cylinder is mounted on the cross frame, a piston rod of the first cylinder is rotatably connected to the shaft of the second mounting frame passing through the cross frame, the first cylinder drives the movable mold to approach or move away from the fixed mold through the second mounting frame, and the invention is characterized in that: It also includes a first pushing component and a second pushing component. The movable mold is respectively provided with the first pushing component and the second pushing component for pushing the building block to separate from the building block mold.

2. A mold for processing plastic building blocks according to claim 1, characterized in that: The first pushing assembly includes a second cylinder, a first pushing frame, an arc frame, a push column and a first elastic member. The push column passing through the end of the building block mold is slidably arranged on the movable mold. The push column is located in the inner cavity of the movable mold and is surrounded by the first elastic member. The push columns passing through the same row of the building block molds are commonly connected with the arc frame, and the first pushing frame is connected between the arc frames. The first pushing frame is connected to the telescopic rod of the second cylinder mounted on the second mounting frame.

3. A mold for processing plastic building blocks according to claim 2, characterized in that: The second pushing assembly includes a push rod, a third mounting bracket, an extrusion rod, a second elastic member, a second pushing bracket, a first connecting block, a connecting rod and a pushing plate, the upper and lower parts of the first pushing bracket are both equipped with the push rods parallel to the arc frame, the second mounting bracket is installed on the side wall of the second mounting bracket facing the horizontal frame, the extrusion rod is slidably installed on the upper and lower parts of the third mounting bracket, the second elastic member is wrapped around the extrusion rod, one end of the extrusion rod is in contact with the push rod, the other end of the extrusion rod passes through the third mounting bracket and is connected to the second pushing bracket, the upper and lower parts of the second pushing bracket are both equipped with the first connecting block, the first connecting block is commonly connected to the connecting rod, the upper and lower sides of the connecting rod centered on the building block mold are connected to the pushing plate, and the two ends of the pushing plate are slidably installed with the connecting rod.

4. A mold for processing plastic building blocks according to claim 3, characterized in that: The cam is provided with a plurality of rollers, each of which is adapted to move along a cam face, and the plurality of rollers are provided with rollers that are adapted to move along a cam face.

5. A mold for processing plastic building blocks according to claim 4, characterized in that: The side of the inverted T-shaped slide toward the first cylinder is arranged to be inclined downward.

6. A mold for processing plastic building blocks according to claim 5, characterized in that: It also includes a screw rod and a second connecting block. The screw rod is parallel to the connecting rod on one side. The screw rod is rotatably installed on the first connecting block. The second connecting blocks are threadedly connected on both sides of the screw rod centered on the building block mold. The second connecting block is fixedly connected to the pushing plate.

7. A mold for processing plastic building blocks according to claim 6, characterized in that: It also includes an n-type frame, an oblique slide, a longitudinal connecting plate and a fixing component. The n-type frame is slidably installed between the second mounting frame and the two side walls of the horizontal frame. The lower end of the n-type frame is connected to the oblique slide. The oblique slide is slidably connected to the longitudinal connecting plate installed on the second push frame. The third mounting frame is provided with a fixing component for limiting and fixing the n-type frame.

8. A mold for processing plastic building blocks according to claim 7, characterized in that: The fixing assembly includes a limit card plate and a third elastic member. The limit card plate is slidably mounted on the third mounting frame. The limit card plate slides through the n-shaped frame. The third elastic member is arranged on the limit card plate.

9. A mold for processing plastic building blocks according to claim 8, characterized in that: It also includes an exhaust component, on which the horizontal frame is installed the exhaust component for exhausting the gas generated during the injection molding of the building blocks, and the exhaust component is arranged above the fixed mold.

10. A mold for processing plastic building blocks according to claim 9, characterized in that: It also includes a collecting frame, which is arranged on the base and is arranged below the movable mold and the fixed mold.